Food mixer and fruit juice extractor



p 27, 1938. w. B. KQCHNER 5 AL 2,131,290

FOOD MIXER AND FRUIT JUICE EXTRACTOR Filed May 21, 1935 2 Sheets-Sheet 1gm mmy W Sept. 27, 1938. w. B. KOCHNER Er AL FOOD MIXER AND FRUIT JUICEEXTRACTOR Filed May 21, 1955 Sheets-Sheet 2 Me Wezzzwzhrm- Va/We]! y. f1 2% n w Patented Sept. 27, 19 38 2 UNITED STATES PATENT oFF-I-cr;

FOOD MIXER-AND FRUIT JUICE EXTRACTOR William B. Koclmer and EugeneNewnham, St. Louis, Mo., assignors to Knapp-Monarch Company, St. Louis,Mo., a corporation of Missouri Application May 21, 1935, Serial No,22,569 5 Claims. (01 259-34) An object of our invention is to provide an'Figure 5 is a side elevation, partly in section electric applianceespecially adaptable for both showing the mixer set up for juicingfruit. mixing food and juicing fruit, the same being Figures 6 and 7 areenlarged, detail, sectional comparatively simple, durable andinexpensive. views on the lines 6-6 of Figure 5, showing a 5 A furtherobject is to provide acombined food clutch arrangement between a mixerelement and mixer and fruit juice extractor in which differthe motordriven shaft in connected and disent sized bowls are adapted to besupported roconnected positions respectively; and 1 tatably by a bowlsupport, a mixer element being Figure 8 is a sectional view on the line8-8 of provided for cooperation with the contents of Figure 6, showingfurther details of theclutch.

10 either bowl and being so mounted that it can On the accompanyingdrawings, we have used 1 properly coact with either a large or a smallbowl the reference numeral III to indicate a base. It by a simplepivotal adjustment. is preferably provided with resilient pads or feet Afurther object is to provide a food mixer I2 for engagement with asupporting surface I4, having a removable motor, the mounting for thesuch. as a table or the like.

5 motor including a latch and being so arranged Upstanding on the baseIn is a bifurcated post that the motor can be mounted in a plurality ofI6. Plvoted in the bifurcation of the post It on different angularpositions to cause the proper a pin I8 is a motor supporting arm 20. Itis association of a mixer element, depending from provided with a pairof stop'shoulders 22 and 24 the motor with different sizes of mixingbowls adapted to coact with a set screw 26 and a shoul-- supported onthe bowl support of the mixer. der 28 respectively in the lowered andraised po- 20 Still a further object is to provide an upstandsitions ofthe arm 20. The set screw 26 is proing hub on the motor with which thefruit juicer vided with a lock nut 30 and the purpose of .the. mechanismis associable, a handle being provided set screw is to adjust the mixer.so that a mixer for manipulation of the motor by hand when elementthereof will be adjacent, but not. touch desired instead of it beingmounted on the base, the bottom of a mixing bowl, as will be observed.and this handle being pivoted so as to swing after the entire inventionis described. 1 out of the way when it is desired to place the In thebase III, we provide a socket 32 adapted juicer mechanism in operation.to removably receive a pair ofball bearings 34,

Still a further object is to provide a novel which are pressed orotherwise secured on ,a

clutch arrangement between a mixer element and spindle 36. The spindle36 is secured to a pan? a driven shaft, which is readily operable fordislke support 38 having a peripheral flange 40 and connecting the mixerelement when it is desired a smaller offset flange 42. The flange 40 isto clean it or remove it, when it is not being used. adapted to positiona large mixing bowl 44 while With these and other objects in view, ourinthe flange 42 is adapted to position a smaller vention consists in theconstruction, arrangeone 46, each concentrically relative to the axis ofment and combination of the various parts of our the spindle 36. fruitmixer and fruit juice extractor, whereby The arm 20 overhangs the bowlsupporting pin the objects contemplated are attained, as herein- 38 andits free end is provided with a hub 41, after more fully set forth,pointed out in our having a socket 48 (see Figure 3).-

claims, and illustrated in the accompanying A motor-50 isprovided with apin 52 adapted drawings, in which: to pivotally enter the socket 48. Thepin 52 is Figure 1 is a side elevation of a food mixer provided with anannular shoulder 54. A latch and fruit juice extractor embodying ourinvenpin 56 is adapted to coact'therewith. The'latch tion, parts beingbroken away and other parts pin 56 is provided with a retracting knob 58being shown in section to illustrate details of and is urged toward thelatched position bya construction. spring 60,

Figure 2 is a partial plan view of the same, The hub 41 is provided witha pair of socketsv illustrating an adjustment feature for the mixer 62and 64. These are adapted to selectively reelement. ceive a pin 66,which depends from the motor Figure 3 is an enlarged, detail sectionalview 50, so that mixer elements 68, which depend'from d on the line 33of Figure 1, showing a motor the motor can be positioned on either of,the latching means. center lines a, or b, in Figure 2, the mixerele-Figure 4 is an enlarged, detail sectional view ments being shown solidand dotted respectivelyon the line 4-4 of Figure 1, showing a handle forthe two positions. latching means. In one position the mixer elementsare con- V trally located relative to the small bowl 48, while inanother position they are located ofl-center relative to ,the large bowl44, so as to cooperate with its entire contents as the bowl rotatesduring the mixing operation.

The mixer elements 88. are of the usual overlapping loop type, and aresupported by shafts 18. Each shaft 18 at its upper end has an annulargroove 12 and an angular portion I4. The angular portion is adapted toenter a similarly shaped angular socket 18 in a sleeve 18. (See Figure6.) The sleeve 18 is connected as by a pin 88- to a shaft 82, which issuitably geared within a gear housing 84 to the shaft of the motor 58. Asecond sleeve 88 surrounds the sleeve 18 and slidable on this sleeve isa third one 88. The sleeve 88 is constrained to move in one directionrelative to the sleeve "I8 by a spring 88 interposed between shouldersof the two sleeves, as clearly shown in Figure 6. The sleeve I8 carriesin lateral bores 82 a pair of balls 84, which are urged inwardly toengage the groove I2 by an inclined shoulder 88 on the sleeve 88.

The motor 58 is provided with an upstanding hub 88, which is preferablytapered.

A juicer bowl I88 is provided with a hub I82 for removable positioningon the hub 88.

Within the hub a juicer shaft I84 is rotatably mounted and operativelyconnected as by an angular portion I 88 with a socket member I88 securedto one of the, shafts 82. The other shaft need not be provided with ahub 88.

A fruit reamer H8 is mounted on the upper end of the juicer shaft I84within the bowl I88.

The juicer bowl is provided with a depending spout H2 having anextension spout H4. The spout H4 is rotatable relative to the spout II2,so that the juice extracted from the fruit can be directed to floweither into the mixer bowl or into a receptacle at the side thereof.

A handle H8 is pivoted on a pin II8 supported by the motor 58. A springI28 is arranged in the pivotal connection to prevent rattling of theparts and to cause the handle to assumethe position of Figure 1 undertension, when it is desired to have the handle in an out of the wayposition for the juicer bowl I88.

A latch shown in Figure 4 is provided for the free end of the handle II8 and comprises a springurged retractible pin I22 adapted to normallycoact with a socket I24 in the gear housing 84.

Practical operation In the operation of my food mixer and fruit juiceextractor, when it is desirable to whip cream or mix foods in the smallbowl 48, it is positioned within the flange 42 as shown by dotted linesin Figure 1 and full lines in Figure 2. The mixer elements 88 arecentrally positioned as illustrated by full lines in Figure 2, oneofthem being removed if desirable for the particular food being mixed.

When it is necessary to use the larger bowl 44, it is positioned in thesupporting pan 88, and the mixer elements preferably adjusted to thedotted position of. Figure 2.

For this adjustment, the knob 58 of the latch pin 58 is pulled outwardlyand the motor is lifted by the handle H8 and swung until the pin 88registers with the socket 84 and then pushed downwardly until againlatched. r

When it is desirable to remove the mixer elements, the sleeves 88 can bemoved downwardly,

as in Figure 7, against the action of .the springs 88 for allowing theballs 84 tomove upwardly so that the shafts I8 can be removed from thesleeves 18.

When replacing the mixer elements, the sleeves 88 are also sliddownwardly, so that the portion of the shaft 18 above the annular groove12 can pass by the balls 84 and when the sleeves are released, thesprings will move them upwardly to cause the inclined shoulders 88 toforce the balls into the grooves 12 (as in Figure 6).

When it is desirable to set up the mixer for a fruit juicing operation,the parts I84, H8 and I88- are placed in the position of Figure 5,whereupon operation of the motor 58 will cause the reamer I I8 torotate. Fruit such as oranges and the like can then be cut in half andheld by hand over the reamer reamed therefrom will flow out through thespout 4.

During food mixing operations, food works up the shaft 18, and we haveprovided a means to return such food to the mixing bowl. This meansconsists of a flange H on each shaft. When the food works up to theflange, it is thrown oil. by

centrifugal force and will return by gravity to the bowl as indicated bythe arrow in Figure 1.

Some changes may be made in the arrangement and construction of thevarious parts of our food mixer and fruit juice extractor, withoutdeparting from the real spirit and purpose of our invention, and it isour intention to cover by our claims, any modified forms of structure oruse of mechanical equivalents, which may be reasonably included therein.

We claim as our invention:

1. Ina device of the class described, a base, a bowl supported thereon,a motor support extending upwardly from said base and overhanging'saidbowl, a motor pivotally mounted on said motor support on an axisofl-center relative to the axis of said bowl, and a mixer elementdepending from and operatively connected with said motor forcooperationwith the contents of said bowl and pin and socket means to position saidmotor at a plurality of different angular positions relative to a planecontaining the axis of said bowl and said first-mentioned pin.

2. In a device of the class described, a base, a bowl supported thereon,a motor support extending upwardly from said base and overhanging saidbowl, a motor pivotally mounted on said motor support on an axisofi-center relative to the axis of said bowl, and a mixer elementdepending from and operatively connected with said motor for cooperationwith the contents of said bowl, the pivotal mounting for said'motorcomprising a member having a socket and a pin for coaction therewith,said pin having a shoulder, a retractible latch carried by said member,means normally causing said latch to prevent disconnection of said pinfrom said member by engagement of said shoulder with said latch, andadditional pin and socket means to position said motor at a plurality ofdifferent angular posi-- on said base, a motor removably positioned onsaid motor support, a mixing element carried by and operativelyconnected with said motor, a

' handlefor. supporting said motor and mixing element by hand whenremoved from said motor support, a fruit juice extractor mechanismassociable with said motor, said handle being pivoted to said motor formovement toan out-of-theway position, said fruit juice extractormechanism being adapted to be used with said motor when said-handle isin such position, a spring urging said handle in one direction of itspivotal movement, and a latch to latch it in normal position againstsuch urging.

4. In a. device of the class described, a base, a bowl supportthereon,-a mixer element support on said base, a. mixer element mountingand a mixer element depending therefrom for cooperation with thecontents of a bowl mounted on said bowl support, said mounting beingpivotally associated with said mixer element support for positioning atthe center of said bowl support or Spaced from the center thereof andmeans on said mixer element support cooperating with said mounting toconfine said mounting to either one 01' said positions and againstpivotal movement relative to said mixer element support.

' 5. In a device of the class described, a base, a bowl support thereon,a. mixer element support on said base, a mixer element mounting and a.mixer element depending therefrom for cooperation with the contents ofa, bowl mounted on said bowl support, said mounting having a dependingpin, said mixerelement support having a socket to receive said pin, saidpin having a depression, a retractable latch carried by said mixerelement support to normally coact with said depression and an auxiliaryconnection between said mounting and said mixer element supportcomprising a pin having a pair'of cir-.

cumferentially spaced sockets radially spaced from the axis of saidfirst pin, said second pin being selectively coactable with either ofsaid sockets.

WILLIAM B. KOCHNER. EUGENE NEWNHAM.

